Change detection of double 0.0 to use BitConverter.DoubleToInt64Bits

Underneath BitConverter just casts 64bit double to a 64bit int with the same bit pattern, making it a simpler operation. (cherry picked from commit 4d439ab)
FICTURE7 · Jul 29, 2015 · c6a0c45 · c6a0c45
1 parent d4a181f
commit c6a0c45
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/src/Compilers/Core/Portable/ConstantValue.cs b/src/Compilers/Core/Portable/ConstantValue.cs
@@ -232,7 +232,7 @@ public static ConstantValue Create(bool value)
 
         public static ConstantValue Create(float value)
         {
-            if (value == 0 && 1 / value > 0)
+            if (BitConverter.DoubleToInt64Bits(value) == 0)
             {
                 return ConstantValueDefault.Single;
             }
@@ -246,7 +246,7 @@ public static ConstantValue Create(float value)
 
         public static ConstantValue CreateSingle(double value)
         {
-            if (value == 0 && 1 / value > 0)
+            if (BitConverter.DoubleToInt64Bits(value) == 0)
             {
                 return ConstantValueDefault.Single;
             }
@@ -260,7 +260,7 @@ public static ConstantValue CreateSingle(double value)
 
         public static ConstantValue Create(double value)
         {
-            if (value == 0 && 1 / value > 0)
+            if (BitConverter.DoubleToInt64Bits(value) == 0)
             {
                 return ConstantValueDefault.Double;
             }